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#1
September 24th, 2005, 07:36 PM
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Conditionally Clear Contents
Hi all,
I have a combo box on a form. The como box selects a studentID. After selecting a student the user can then select from a second combo box their tutor. The form itself is for students to select a test. If the student wishes to cancel their 'appointment' with a tutor their is a special ID available in the first combo box, studentID '0'. This returns the text in the combox box to 'Available'. The student then has to manually clear the second combo box with the tutors name. Is it possbile to automatically clear the second combo with the first one states, studentID '0'. I was thinking along the lines of: iif(combo1=0, combo2.value="".......) Any ideas where I would put should code? Onupdate? Many thanks for taking the time to read this. Any and all help very welcome. Debbie D. (UK) 
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#2
September 24th, 2005, 09:15 PM
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Hi Debbie, On the after update event of the student you can write the code
If Me.combo1=0 then me.combo2=Null End If -- I hope that helped Good luck "Debbie D." wrote: Hi all, I have a combo box on a form. The como box selects a studentID. After selecting a student the user can then select from a second combo box their tutor. The form itself is for students to select a test. If the student wishes to cancel their 'appointment' with a tutor their is a special ID available in the first combo box, studentID '0'. This returns the text in the combox box to 'Available'. The student then has to manually clear the second combo box with the tutors name. Is it possbile to automatically clear the second combo with the first one states, studentID '0'. I was thinking along the lines of: iif(combo1=0, combo2.value="".......) Any ideas where I would put should code? Onupdate? Many thanks for taking the time to read this. Any and all help very welcome. Debbie D. (UK)
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#3
September 24th, 2005, 10:33 PM
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Ofer,
Good to recieve you very welcome advise once again this week. It worked great but then I tried it on another combo box in the subform. The only thing different is that this combo contents are coming from a query behind the subform. Here is my code, well to be honest its yours ;-) As you can see tried the column(0) to see if this makes a difference. Private Sub CustID_AfterUpdate() If Me.CustID.Column(0) = 0 Then Me.Note = Null Me.Module = Null End If End Sub But I get this message ' Runtime error 94' Invalid use of Null "Ofer" wrote: Hi Debbie, On the after update event of the student you can write the code If Me.combo1=0 then me.combo2=Null End If -- I hope that helped Good luck "Debbie D." wrote: Hi all, I have a combo box on a form. The como box selects a studentID. After selecting a student the user can then select from a second combo box their tutor. The form itself is for students to select a test. If the student wishes to cancel their 'appointment' with a tutor their is a special ID available in the first combo box, studentID '0'. This returns the text in the combox box to 'Available'. The student then has to manually clear the second combo box with the tutors name. Is it possbile to automatically clear the second combo with the first one states, studentID '0'. I was thinking along the lines of: iif(combo1=0, combo2.value="".......) Any ideas where I would put should code? Onupdate? Many thanks for taking the time to read this. Any and all help very welcome. Debbie D. (UK)
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#4
September 24th, 2005, 10:52 PM
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If it gives you invalid use of null, so most chance that the type of the
fiels is text, in that case try and change it form =Null To ="" -- I hope that helped Good luck "Debbie D." wrote: Ofer, Good to recieve you very welcome advise once again this week. It worked great but then I tried it on another combo box in the subform. The only thing different is that this combo contents are coming from a query behind the subform. Here is my code, well to be honest its yours ;-) As you can see tried the column(0) to see if this makes a difference. Private Sub CustID_AfterUpdate() If Me.CustID.Column(0) = 0 Then Me.Note = Null Me.Module = Null End If End Sub But I get this message ' Runtime error 94' Invalid use of Null "Ofer" wrote: Hi Debbie, On the after update event of the student you can write the code If Me.combo1=0 then me.combo2=Null End If -- I hope that helped Good luck "Debbie D." wrote: Hi all, I have a combo box on a form. The como box selects a studentID. After selecting a student the user can then select from a second combo box their tutor. The form itself is for students to select a test. If the student wishes to cancel their 'appointment' with a tutor their is a special ID available in the first combo box, studentID '0'. This returns the text in the combox box to 'Available'. The student then has to manually clear the second combo box with the tutors name. Is it possbile to automatically clear the second combo with the first one states, studentID '0'. I was thinking along the lines of: iif(combo1=0, combo2.value="".......) Any ideas where I would put should code? Onupdate? Many thanks for taking the time to read this. Any and all help very welcome. Debbie D. (UK)
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#5
September 24th, 2005, 11:53 PM
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Ofer,
My hero, many thanks. Debbie D. "Ofer" wrote: If it gives you invalid use of null, so most chance that the type of the fiels is text, in that case try and change it form =Null To ="" -- I hope that helped Good luck "Debbie D." wrote: Ofer, Good to recieve you very welcome advise once again this week. It worked great but then I tried it on another combo box in the subform. The only thing different is that this combo contents are coming from a query behind the subform. Here is my code, well to be honest its yours ;-) As you can see tried the column(0) to see if this makes a difference. Private Sub CustID_AfterUpdate() If Me.CustID.Column(0) = 0 Then Me.Note = Null Me.Module = Null End If End Sub But I get this message ' Runtime error 94' Invalid use of Null "Ofer" wrote: Hi Debbie, On the after update event of the student you can write the code If Me.combo1=0 then me.combo2=Null End If -- I hope that helped Good luck "Debbie D." wrote: Hi all, I have a combo box on a form. The como box selects a studentID. After selecting a student the user can then select from a second combo box their tutor. The form itself is for students to select a test. If the student wishes to cancel their 'appointment' with a tutor their is a special ID available in the first combo box, studentID '0'. This returns the text in the combox box to 'Available'. The student then has to manually clear the second combo box with the tutors name. Is it possbile to automatically clear the second combo with the first one states, studentID '0'. I was thinking along the lines of: iif(combo1=0, combo2.value="".......) Any ideas where I would put should code? Onupdate? Many thanks for taking the time to read this. Any and all help very welcome. Debbie D. (UK)
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